Impact of Software Settings on Multiple-Breath Washout Outcomes
Fig 2
LCI measurement bias due to decreased ambient pressure settings.
Bland Altmann plot of lung clearence index (LCI) determined at lower ambient pressure setting (960 kPa instead of 980 kPa) minus baseline LCI versus mean of both LCI. Black circles represent children with CF, grey circles former preterm and open circles healthy children. Solid line represent mean difference (0.0034), dotted lines represent upper (0.0066) and lower (0.0002) limits of agreement.